<template>
  <el-form ref="deptForm" :model="form" :rules="formRules" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option v-for="item in list " :key="item.id" :value="item.username" :label="item.username" />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>

</template>

<script>
import { getEmployeeSimple } from '@/api/employees'
import { addDepartments, getdepartmentsDetail, updatedepartments } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    // 定义一个检验规则函数, 校验部门名称同级不能重复
    const validName = (rule, value, callback) => {
      // 验证用户输入的value值(部门名称), 在同级部门不能重复
      // 被占用的列表 --> 当前点击的部门(财务部)的子部门[财务核算部,税务管路部,薪资管理部]
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      console.log('existNameList', existNameList)
      // 判断当前用户输入的value, 在被占用列表中是否存在
      // 编辑时找兄弟的处理
      if (this.isEdit) {
        // 只能获取到当前编辑的部门的id , 获取到当前部门的pid
        const pid = this.originList.find(item => item.id === this.id).pid
        // 通过pid去看所有的部门数据中找到当前编辑部门的所有兄弟
        const brothers = this.originList.filter(item => item.pid === pid)
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }

      if (existNameList.includes(value)) {
        // 存在 检验失败
        callback(new Error(`该部门名称${value}已经存在,不能重复`))
      } else {
        // 不存在  检验成功
        callback()
      }
    }
    // 定义一个检验规则函数, 校验部门的编码唯一性
    const validCode = (rule, value, callback) => {
      // 验证用户输入的value值, 在整个项目中的编码是否已经存在
      // 获取整个部门的表白吗 , 编码的数组
      console.log('this.originList', this.originList)
      let existCodeList = this.originList.map(item => item.code)
      console.log('existCodeList', existCodeList)
      // 如果是编辑的状态, 将当前编辑的部门的编码从存在的数据溢出,然后再判断
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      // 判断当前value值,是否在数组中存在
      if (existCodeList.includes(value)) {
        // 存在  检验失败
        callback(new Error(`该部门编码${value}已经存在,请黄一个编码`))
      } else {
        // 不存在  校验通过
        callback()
      }
    }
    return {
      list: [],
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      formRules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { min: 1, max: 300, message: '部门介绍要求1-300个字符', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.loadEmployeeSimple()
    if (this.isEdit) {
      this.loadDepartDetail()
    }
  },
  methods: {
    // 实现编辑
    async doEdit() {
      try {
        await updatedepartments(this.form)
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 获取当前部门的数据
    async loadDepartDetail() {
      const res = await getdepartmentsDetail(this.id)
      console.log(res, 'getdepartmentsDetail')
      this.form = res.data
      console.log(this.form, '1111')
    },
    // 实现添加子部门
    async doAdd() {
      try {
        const res = await addDepartments({ pid: this.id, ...this.form })
        console.log(res, 'addDepartments')
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    async loadEmployeeSimple() {
      try {
        const res = await getEmployeeSimple()
        console.log(res, 'getEmployeeSimple')
        this.list = res.data
      } catch (error) {
        console.log(error)
      }
    },
    hSubmit() {
      this.$refs.deptForm.validate(valid => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    hCancel() {
      this.$emit('close')
    }
  }
}
</script>
